Borland seemed to be in flux in the year or two prior to the split. Turbo Prolog was hyped and then seemed to disappear (although I'm pretty sure it shipped a version or two), Turbo Pascal was advertised for the then-new Amiga 1000 and never shipped.
It's hard to understate how critical Borland was in the shift from the BASIC era of home computing for many users and inexperienced programmers in the 80s and early 90s.
I didn't know this, nice to dream if there was a successful and widespread Turbo Pascal for Amiga how things escalating differently. Like an early Delphi maybe. Basic never made a real hit on Amiga platform, probably Amos was the only product resembling kind of Turbo Pascal and widely utilized by users but it was too shallow and slow for the era.
It's hard to understate how critical Borland was in the shift from the BASIC era of home computing for many users and inexperienced programmers in the 80s and early 90s.